AGRA/LUCKNOW, Aug. 6 -- Partially decomposed human remains were recovered from an unattended trolley bag inside the general coach of the Chennai-New Delhi Tamil Nadu Express after the train arrived at Agra Cantt railway station early on Wednesday, triggering a multi-state investigation by the Government Railway Police (GRP) and the Railway Protection Force (RPF). Deputy SP, GRP, Rajesh Dixit, said the control room received the information early on Wednesday while the train had already crossed Gwalior and was approaching Agra Cantt. "The caller informed us that a red trolley bag lying unclaimed in the general coach was leaking blood and emitting a strong foul smell. Since the train had already left Gwalior, the information was immediately relayed to the GRP and RPF teams at Agra Cantt," Dixit said. "When the train reached Agra Canttt at around 5.30am, GRP and RPF personnel opened the bag and found decomposed human body parts, including a severed hand and a portion of the torso," the officer said. A forensic team collected samples from the scene before the body parts were sent for the post-mortem examination. "We have traced a logo on the wrapper in which the body parts were packed. It bears the name of a Chennai establishment," the SP said. A GRP team is being sent to Chennai to coordinate with the local police, he added. Police are also collecting CCTV footage from railway stations between Chennai and Agra to determine where the trolley bag was brought aboard the train. Officials said the investigation was being conducted jointly by the GRP and the RPF, while local police in Chennai would also be approached for assistance....